Wrench



Nov. 17,1925. I 1,561,681 0 4 C. W. BARNES WRENCH Filed NOV. 22. 1924 I N ,AM

[- f-zzvezzzor j 1 3 3 tomeya Patented Nov. 17, 1925.

UNITED STATES CHARLES W. BARNES, 0F MANSFIELD, OHIO.

WRENCH.

Application filed November 22, 1924. Serial No. 751,483.

To all whom it may concern Be it known that I, CHARLES W. BARNES, a citizen of the United States of America, and a resident of Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in WVrenches, of which theufollowing is a full, clear, and exact description.

My invention relates to wrenches and the principal object of my invention is to provide a new and improved wrench particularly designed for gripping objects of the general nature of pipes. In the drawings accompanying this specification and forming a part thereof I have shown, for purposes of illustration, two forms which my invention may assume. In these drawings:

Figure 1 is a general view of one of these illustrative forms of my invention showing the wrench in open position,

Figure 2 is a second view of this form showing the wrench in closed or gripping position, i V Figure 3 is a section on the line 3-3 of Figure 2, while Figure 4 is a view similar to Figure 1 showin the second form of my invention herein illustrated.

The wrench disclosed in Figures 1 through 3 includes a frame 11 comprising a back 12 connected at one end by means ofa pair of spaced plate portions 1 1 to an offset handle 15, and a lever 16 provided at its lower end with a handle 17 arranged to be disposed in proximity to the handle of the frame 11. Rigidly connected to the frame 11 at its upper end is a first jaw 13 while pivotally supported on the lever 16 and biased by means of a spring 19 into the position at the extremity of its limited pivotal movement in the direction of the back 12 is a second and cooperatin jaw 18. The lever 16 is c011- neeted to t e frame 11 by means of a translatable pivot comprising a pair of rollers 20 riding in slots 21 in the plates 14 of the frame 11 and rotatable upon hubs 22 projecting from the two lateral faces of a block 23 provided centrally with a screw-threaded aperture 24 arranged to receive a screwthreaded rod 25 positioned in the slot 26 of the lever 16, conveniently rotated by means of an integral finger piece 27, and rotatably and non-reciproca 1y supported in a bearing aperture 28 in the upper end of the lever 16 and a cooperating bearing slot 29 formed adjacent the handle portion 17 of the lever 16 and closed by a plate 30 held in position by means of a machine screw 31.

In operation, the finger piece 27 is 1'0- tated to bring the lever 16 to that adjusted position relative to the frame 11 in which the jaws 13 and 18 will be effective to firmly clamp the article 32. The lever 16 is then swung from the position shown in Figure 1 to a position in which the jaw 18 has just engaged the article 82 after which the ap proachment of the handles 15 and 17 is continued to cause the jaws 13 and 18 to firmly clamp the article 32 both by the generally axial movement of the lever 16 as the rollers 20 ride along the slots 21 and also by the straightening of the toggles formed by the lever 16 and the jaw 18 and based upon the pivotal connection between the lever 16 and the frame 11 and the area of engagement of the jaw 18 with the article 32.

The wrench shown in Figure 4 is identical with that shown in Figures 1 through 3 except that the jaw 33 is rigid with the lever 34 so that the toggle action is eliminated and the gripping of the article 32 occurs solely through the cam action incident to the translation movement of the pivot connecting the lever 34: and the frame 11.

t will be apparent from the above description that my invention provides a Wrench which may be readily adjusted to ac commodate articles of various sizes and after adjustment may, with one hand and in a generally continuous movement, be moved into position preparatory to gripping the article, next moved into position firmly gripping the article, and then by a still further movement operated to rotate the article gripped.

To those skilled in the art it will also be apparent that the wrenches herein shown possess advantages other than those herein specifically pointed out or suggested, that the particular wrenches herein illustrated may be variously changed and modified without departing from the spirit of my invention or sacrificing the advantages thereof, and that the advantages of my invention may be secured by structures other than those herein illustrated. It will therefore be understood that the disclosure herein is illustrative only and that my invention is not limited thereto. 1

I claim:

1. A wrench comprising a frame provided with a handle, a first jaw operatively connected to said frame, a lever provided with a handle disposed adjacent the handle of said frame, a second jaw pivotally connected to said lever to form with said lever a toggle based on the pivotal connection of said lever and said frame and the area of engagement of said second jaw with the article between said jaws, and means pivotally connecting said lever to 'said frame comprising a pin on said lever and a slot in said frame and so arranged that, in any adjusted position of said lever relative to said frame, said lever may be operated, by approachment of said handles, to move said second jaw into cooperating relation to said first jaw, and may then be further nected to said lever, and means connecting said lever to said frame and so arrange that, in any adjusted position of said lever relative to said frame, said lever may be operated by approachment of said handles to move said second jaw into cooperating relation to said first jaw and may then be operated, by a continuation of said approachment, to cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

3. A wrench comprising a frame provided with a handle, a first jaw operatively connected to said frame, a lever provided with a handle disposed adjacent the handle of said frame, a second jaw operatively connected to said lever, and translatable pivot means connecting said lever to said frame 7 comprising a pin on said lever and a slot in said frame and so arranged that, in any adjusted position of said lever relative to said frame, said lever, by approachment of said handles, may be swung about said pivot to move said second jaw into cooperating relation to said first jaw and may then be further operated, by continued approachment of said handles, to translate said pivot to a point nearer the engaging area of said first jaw to thus cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

4.. A wrench comprising a frame, a first jaw operatively connected to: said frame, a lever, a second jaw pivotally connected to said lever to form with said lever a toggle based on the pivotal connection of said lever and said frame and the area of. engagement of said secondjaw with the article between said jaws, and means pivotally connecting said lever to said frame comprising a pin on said lever and a slot in said frame and so arranged that, in any adjusted position ofsaid lever relativeto said frame, said lever may be operated to move said second jaw into cooperating relation to said first jaw and may then be further operated to translate said pivot along said slot to a point nearer the engaging area of said first jaw to thus-cam said second jfaw toward said first jaw and simultaneously straighten said toggle, to thus firmly clamp between said jaws the article there disposed.

5. A wrench comprising a frame, first jaw operatively connected to said frame, a'lever, a second aw operatively connected to said lever, and means connecting said lever to said frame and effective, in any adjusted position of said lever relative to said frame, to

permit said lever to be operated to move said second aw into cooperating relatlon to said first aw and may then be operated, by

"a continuation of the same general movement, to cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed. v

6. A wrench comprising a frame, a first jaw operatively connected to said frame, a V

lever, a second jaw operatively connected to said lever, and translatable pivot means connecting said lever to said frame comprising a pin on said lever and a slot in said. frame and so arranged that, 111 any ad usted position of said lever relative to said frame, said lever may be swung about said pivot to a move said second jaw into cooperating relation to said first jaw and may then be further operated to translate said pivot to a point along, said slot nearer the engaging area of said first jaw to thus cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

7. A wrench comprising a frame provided with a handle, a first jaw operatively connected to said frame, a lever provided with a handle disposed adjacent the handle of said frame, a second jaw pivotally con-- nected to said lever to fornr with said lever a toggle based on the pivotal connection of said lever and said frame. and the area of engagement of said second jaw with theatticle between said jaws, and means pivotal- 1y connecting said lever to said frame and effective, in any adjusted position of said lever relative to said frame, to permit (said:

lever to be operated, by approachment of said handles, to move said second jaw into 7 cooperating relation to said first jaw, andto then be further operated to translatesaid.

pivot to a point nearer the engaging; area of said first jaw, to thus cam said; second jaw toward said first jaw and. simultane ou'sly straighten said toggle, to thus firmly clamp between said jaws the article there disposed.

8. A wrench comprising a frame provided with a handle, a first jaw operatively connected to said frame, a lever provided with a handle arranged to lie adjacent the handle of said frame, a second jaw operatively connected to said lever, and means connecting said lever to said frame and effective, in any adjusted position of said lever relative to said frame, to punit said lever to be operated by approachment of said handles to move said second jaw into cooperating relation to said first jaw and to then be operated to cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

9. A wrench comprising a frame provided with a handle, a first jaw operative ly connected to said frame, a lever provided with a handle arranged to lie adjacent the handle of said frame, a second jaw operatively connected to said lever, and translatable pivot means connecting said lever to said frame and effective, in any adjusted position of said lever relative to said frame, to permit said lever, by approachment of said handles, to be swung about said pivot to move said second jaw into cooperating relation to said first jaw and to then be further operated to translate said pivot .to a point nearer the engaging area of said first jaw to thus cam.

said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

10. A wrench comprising a frame, a first jaw operatively connected to said frame, a lever, a second jaw pivotally connected to said lever to form with said lever a toggle based on the pivotal connection of said lever and said frame and the area of engagement of said second jaw with the article between said jaws, and means pivotally connecting said lever to said frame and effective, in any adjusted position of said lever relative to said frame, to permit said lever to be operated to move said second jaw into cooperating relation to said first jaw and to then be further operated to translate said pivot to a point nearer the engaging area of said first jaw to thus cam said second jaw toward said first jaw and simultaneously straighten said toggle, to thus firmly clamp between said jaws the article there disposed.

11. A wrench comprising a frame, a. first jaw operatively connected to said frame, a lever, a second jaw operatively connected to said lever, and means connecting said lever to said frame and effective, in any ad justed position of said lever relative to said frame, to permit said lever to be operated to move said second jaw into cooperating relation to said first jaw and to then be operated to cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

12. A wrench comprising a frame, a first jaw operatively connected to said frame, a lover, a second jaw operatively connected to said lever, and translatable pivot means connecting said lever to said frame and effective, in any adjusted position of said lever relative to said frame, to permit said lever to be swung about said pivot to move "said second jaw into cooperating relation to said first jaw and to then be further operated to translate said pivot to a point nearer the engaging area of said first jaw to thus cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

13. A wrench comprising a frame, a first jaw operatively connected to said frame, a member, a second jaw operatively connected to said member, and means connecting said member to said frame and effective, in any adjusted position of said member relative to said frame, to permit said member to be operated to move said second jaw into cooperating relation to said first jaw and to then be operated to cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

14. A wrench comprising a frame, a first jaw operatively connected to said frame, a member, a second jaw operatively connected to said member, and means connecting said member to said frame and effective, in any adjusted position of said member relative to said frame, to permit said member to be operated to move said second jaw into cooperating relation to said first jaw and to then be further operated by the same general movement to then cam said second jaw toward said first jaw to thus firmly clamp between said jaws the article there disposed.

In testimony whereof, I hereunto affix my signature.

CHARLES iV. BARNES. 

